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DevOps Steps

Applying Kubernetes Configuration

You can apply Kubernetes resources in order to create and update pods, services, replication controllers, lists and openshift templates. When running on openshift it will also create routes so that services are exposed.

Apply changes by passing the JSON formatted resource and the required environment. If the environment does not exist then a new namespace is created with the environment name.

The KubernetesApply step will enrich Pod or Replication Controller manifests, adding the platform default docker registry if no registry parameter set.

node {
    def rc = getKubernetesJson {
      port = 8080
      label = 'node'
      icon = 'https://cdn.rawgit.com/fabric8io/fabric8/dc05040/website/src/images/logos/nodejs.svg'
      version = newVersion
    }

    kubernetesApply(file: rc, environment: 'my-cool-app-staging', registry: 'myexternalregistry.io:5000')
}

NOTE By default DeploymentEvent are sent to elasticsearch (if running in the same namespace) when a pod or replication controller is deployed.

Waiting for resources to become ready

When applying the kubernetes configuration, you have the option to wait until they become ready. You can set the option readinessTimeout that specifies the amount of milliseconds we should wait until everything is in ready state (this applies only to resources that makes sense, e.g. Pods, ReplicaSets, ReplicationControllers, Deployments, DeploymentConfigs etc). If readinessTimeout is set to a positive value, then kubernetesApply will wait until the resource are ready or the specified amount of time has elapsed. In the later case an Exception will be thrown.

Working with Elasticsearch

Create

You can create events in elasticsearch providing it is running in the current namespace with a Kubernetes service name of elasticsearch. The fabric8 logging template does exactly this.

node {
    def event = '{"user" : "rawlingsj","post_date" : "2016-01-30T13:29:36+00:00","project" : "my-cool-project"}'

    createEvent(json: event, index: 'myindex')
}

NOTE The default elasticsearch index used is pipeline if no index property is set. For more information see https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-index_.html#docs-index_

Approve Events

You can send and update approve events in elasticsearch

node{
    def id = approveRequestedEvent(app: 'test app', environment: 'staging')

    try {
      input id: 'Proceed', message: 'Continue?'
    } catch (err) {

      approveReceivedEvent(id: id, approved: false)
      throw err
    }
    approveReceivedEvent(id: id, approved: true)

}